Notching or like press



Feb. 26, 1924; A. E. COOPER uowcams on LIKE mass Filed March 20. 1922 3 Sheets-Sheet 1 F eb. 26, 1924. 1,4 53% A. E. COOPER NOTCHING OR LIKE PRESS Filed March 20. 1922 s Sheets-Sheet 2 Feb. 26, 1924.; 1,485,168

I A. E. COOPER NOTCHING ORLIKE PRESS Fil ed March 20. 1922 3 Sheets-Sheet 5 mam 6W Patented eb. 28, ra e.

ALBERT ENOCH COOPER, F STAFFORD, ENGLAND,. ASSIGNOR OF ONE-HALF T0 CHARLES JONES, 0F LOWER BBOUGHTO'N, SALFORD, MANCHESTER, ENG-LAND.

NOTGHIITG- OR LIKE' PRESS.

Application filed March 20, 1922. Serial No. 545,230.

2" 0 all whom it may concern Be it known that I, ALBERT ENooH Coornn, a subject of the King of Great Britain and Ireland, residing at Stafford, Eng- 5 land, have invented new and useful Improvements in Notching or like Presses, of which the following is a specification.

. This invention refers to presses or me.- chines as used for cutting notches in the edges of sheet metal plates, rings or segments, and in particular the sheet metal stampings of laminated electrical machinery. Hereto-fore, said presses or machines have consisted of a perpendicular body part resting upon a table and at its upper end terminating in a single overhanging head .part, through. which works a plunger or slide carrying the upper notching punch or die, the lower notching punch or matrix 29 being supported upon a foot or bed plate below said head part.

With such construction of press the cut ting tool lies a considerable distance from the body part in order to allow for the notching of rings on their inner edges, with the width of the ringlying between the tool and the said body part. And in order to avoid flexure of the overhanging part during the punching operations the body part is made of relatively large section. Further, the fly wheel and driving gear are arranged above the press and do not allow of the rings. being passed over the press to bring their inner edges between the notohing tools. The said press also only allows of'one plate being notched at a time.

One of the objects of this invention is to provide a press in which the body part can be ofrelatively small section whilst allowing of the width of the ring to be notched lying between the cutting tool and the said body part. A further object is to provide the body part with more than one overhanging head part and to arrange these at diametrically opposite points so that the forces actin upwardly on the tools will be balanced, or nearly so. A still further object is to provide a press in whichmore thanone ring or segment can be notched at a time.

According tofthe'invention, the improved press comprises a perpendicular body part and each is provided with atool holder and tool, which coacts with the usual matrix carried by a relatively fixed flange or bedplate. The means for operating the body part is preferably arranged below the table,

and the power is applied centrally so that the pressure of th'e'punches while acting on:

the rings or segments is equal.

' To permit of the invention being more fully understood reference will now be made to the accompanying drawings, wherein Fig. 1 illustrates a side sectional elevation, and V a Fig. 2 a plan of one example for 'the improved notchin'g press.

Fig. 3 illustrates a sectional plan on line m.w.

Fig. 4 illustrates a further plan showing two segments in position for notching.

As shown, a. is the body part of the press, the major part of which is'cylindrical in cross section and is slidably mounted in a vertically disposed and open-ended cylinder 6, this latter being provided with a flange b by which it is supported on thetab le c of the machine. At its lower end the cylinder extends through an opening in the table and at its upper end the cylinderis slotted on two opposite sides. 7

At its upper end the body part a is formed or provided with two overhanging parts a a of equal size arranged at diametrically opposite points, each of said overhanging 1 parts being parallel sided, and each project, ing through and slidably fitting one of the slots or gaps in the uppenend of the cylinder b. To each part a, a is fitted a cap a by which the tool holder and tool d arecarried. The complementary matrix 6 for,

each tool d is supported'upon the flange b.

The cylinder?) is flat-sided on its exterior,

see Figure 8, and thetop of the body part L a is also flat-sided, and somewhat narrower than the cylinder, see Figure 2. Further,

the two overhanging head parts a a are narrower than the top of the body part a and thereby leave right-angled shoulders at a, which in conjunction with metal strips f, bolted to the exterior of the cylinder 2'), serve to guide and steady the upper end of the body part a when moved up and down in the cylinder 6. The table 0 is mounted upon the hollow stand or column 6 The means for operating the said body part a cOnsiSt of a rod g, passing down through the body part a which is formed with a conical through boring a and a socket a at its top end, the said rod having ball-like part 9 lying in said socket, and being free to oscillate therein. A plate It, with a like socket and through opening and securedby bolts or screwed studs to the body part a, serves to hold the rod and ball-like part in position, but with the ball-like part free to swivel in its sockets. Above the balllike part the rod 9 is squared to receive a key. At its lower end the rod is screwthreaded and engages the screwed part i of a connecting rod head j, engaging the cranked part of the power shaft 75, this latter being journaled in bearings carried by the column 32 and having a fly-wheel driving pulley k ,l Fith the machinein use, the rotary motion of the shaft 70 produces reciprocating up and down movement of the body part a and tools cl, the degree of vertical movement being governed by the throw of the crank, and the movement of the tools relatively to the matrices 6 being governed by the adjustment of the rod 9 relatively to the part i. lhe adjustment or" the rod is efiected by applying a key to its upper squared end and rotating the rod to right or left.

The rings or segments requiring to be notched are placed upon the matrices c with one edge in the required position for the punch (Z to form the required notch. The rings and segments will be fed to the press by the ordinary or other suitable spacing or dividing mechanism (not shown), each ring or segment being advanced the required distance for each notch.

As shown in full lines in Figure 3, the notches may be formed simultaneously on the inside edge of one ring and in the outside edge of another ring. Or as shown by chain lines in the same figure, a ring may be placed around the press and its inner edges be notched whilst its width lies outside the tool instead of between the tool and the body P'itl'b of the-press, this being made possible by removing the driving gear from above the press to a point below the press.

As shown in Figure 4, two segments may be notched simultaneously and one on the outside edge and the other on the inside edge.

The tools and matrices are adjustable towards and away from the body part a in the ordinary way, and the tool holders and matrix holders afiord suliicient clearance between themselves and the cylinder 6 as to allow room for the ring feeding mechanism to pass.

lVhat I claim is 1. In a stamping or punching press, a body part having overhanging head parts at diametrically opposite points, a stationary cylindrical guide in which said body part moves vertically, a tool holder and tool carried by each overhanging part, a stationary support for said guide, matrices carried by said support one for each tool, and means for reciprocating said body part to operate the tools.

2. In a stamping or punching press, a body part having overhanging head parts at diametrically opposite points, a stationary cylindrical guide in which said body part moves vertically, a tool holder and tool carried by each overhanging part, a stationary support for said guide, matrices carried by said support one for each tool, and

means below the said body part for reciprocating the same to operate the tools.

8. In a stamping or punching press, a body part having overhanging head parts at diametrically opposite points and each head part provided with a punch or tool, a table carrying complementary tools or matrices, one below each of the before-named tools, and means for causing the upper and lower tools to operate upon a stamping placed between them, as set forth.

4. In a stamping or punching press, a body part having overhanging head parts at diametrically opposite points, a stationary cylindrical guide in which said body part moves vertically, a tool holder and tool carried by each overhanging part, a stationary support for said guide and matrices carried by said support, a rod passing through the said head part, which is formed with a conical bore, a driving shaft, a crank on said shaft, and a connecting rod head engaging said crank at one part and the lower end of the rod at another part, and said rod at its upper end engaging the head part through the medium of a universal connection, as set forth.

5. In a stamping or punching press, a body part having two overhanging head parts at diametrically opposite points, tool holders and tools carried by said overhanging head parts, a stationary cylindrical guide in which said body part moves vertically the upper end of the guide having gaps through which the overhanging head parts of the body part project and in which they slide, said guide and the upper end of the body part being flat sided on their exterior,

and the overhanging head parts being narrower than the said upper end of the body part and forming shoulders, metal strips applied to said guide and closely lying against the said shoulders of the body part, a table on which said guide is supported, and matrix holders and matrices supported by said table, below the punching tools, and means for reciprocating the said body part to operate the tools, as set forth.

In testimony whereof I have signed my name to this specification.

ALBERT ENOCH COOPER 

